muscle cramps

[jcrowe]

how do you treat recurring leg muscle cramps in a tennis player? Female tennis player in her 50s suffers from this. She has tried salt, potassium and magnesium supplements, ensured adequate hydration, had sports drinks,had podiatry/orthotic review and trigger point treatment. Is this condition treatable or do some people just cramp without obvious cause? Thanks.

[injuryupdate]

Quinine tablets are good for preventing cramps, although they can lead to cardiac rhythm problems in a small minority.